CVE-2019-9704: Cron Project Cron

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Vixie Cron before the 3.0pl1-133 Debian package allows local users to cause a denial of service (daemon crash) via a large crontab file because the calloc return value is not checked.

Affected products

• Cron Project Cron: before 3.0pl1-133 (fixed in 3.0pl1-133)
• Debian Debian Linux: version 8.0 only; version 9.0 only
• Fedoraproject Fedora: version 29 only

Published 2019-03-12. Last modified 2026-06-17.